Four people have been arrested in Dublin in connection with the abduction of An Post worker and his family in Co Louth last August.
The man, who works at the Drogheda Post Office, his wife and their 2½-month-old baby were held hostage overnight by armed gang on August 1st.
The following morning the man was instructed to go to work as usual and withdraw a sum of money while his family was held hostage.
He was then instructed by the gang to leave the money, some €550,000 in total, at a specified location, and his partner and child were released unharmed some hours later.
As part of their ongoing investigation into the incident, gardaí searched a number of houses in north and west Dublin today.
During the operation three men, one aged in his 30s and two in their 20s, and a woman in her 20s were arrested.
They are currently detained under Section 50 of the Criminal Justice Act, at Garda stations in Louth and Dublin.